How can one troubleshoot and resolve issues related to class inheritance and undefined classes in PHP scripts?

Issue: When working with class inheritance in PHP, it's common to encounter errors related to undefined classes. This can happen when a child class tries to extend a parent class that hasn't been properly included or defined. To resolve this issue, make sure that all necessary classes are included or autoloaded before using them in your script. 

// Ensure parent class is included before extending it
require_once 'ParentClass.php';

class ChildClass extends ParentClass {
    // Class implementation
}

Keywords

class inheritance undefined classes troubleshooting PHP scripts resolve

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